80002
domain: N
Appears in sequences
- Numbers k such that 1000k+1, 1000k+3, 1000k+7, 1000k+9 are all primes.at n=27A064962
- Numbers k such that the k-th triangular number contains only digits {0,2,3}.at n=8A119050
- Number x = concat(MSD(x),b) such that MSD(x)*b = d(x), where MSD(x) is the Most Significant Digit of x and d(x) is the number of divisors of x.at n=12A291618
- Partial sums of A006010.at n=19A335648